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Types of Thin Film Coatings:

  1. Anti-Reflective (AR) Coatings: These coatings are designed to reduce the reflection of light at the surface of an optical component, increasing transmission and minimizing unwanted glare.
  2. High-Reflective (HR) Coatings: HR coatings are used to maximize reflection at a specific wavelength or a range of wavelengths. They are commonly used in mirrors and laser applications.
  3. Dichroic Coatings: These coatings selectively reflect or transmit light of certain wavelengths while absorbing others. They are often used in applications like beam splitters and color filters.
  4. Filter Coatings: These coatings are designed to transmit or block specific wavelengths or ranges of wavelengths, allowing for precise spectral filtering.
  5. Beamsplitter Coatings: Beamsplitters divide incident light into two or more components, often reflecting a portion of the light and transmitting the rest. They are widely used in various optical setups.

Advantages of Thin Film Coatings:

  • Improved Performance: Coatings can significantly enhance the optical properties of components, such as increasing light transmission or reducing unwanted reflections.
  • Customization: Coating designs can be tailored to specific wavelengths or wavelength ranges, allowing for precise control over optical behavior.
  • Reduced Losses: Coatings can minimize losses due to reflections or absorption, which is particularly important in high-performance optical systems.
  • Versatility: Thin film coatings can be applied to a wide range of substrates, including glass, plastics, metals, and more.
  • Cost-Effectiveness: By optimizing optical properties through coatings, it's often possible to achieve desired performance without resorting to complex and expensive designs.

Methods of Coating Deposition:

  1. Physical Vapor Deposition (PVD): This includes techniques like electron beam evaporation and sputtering, where a material is vaporized and deposited onto the substrate.
  2. Chemical Vapor Deposition (CVD): In this process, gaseous reactants chemically react on the substrate to form a thin film.
  3. Sputtering: This involves bombarding a target material with ions to release atoms that then deposit onto the substrate.
  4. Evaporation: The material to be coated is heated until it vaporizes and then condenses onto the substrate.

Thin film coatings are crucial for achieving desired optical characteristics in a wide range of applications, from consumer electronics to scientific research and industrial processes. The precision and control offered by these coatings play a vital role in shaping how light interacts with optical components.

Revestimiento de película delgada

Recubrimiento de Co2

Recubrimientos de película delgada - Recubrimientos de CO2 sobre ZnSe


RA a 10,6 μm

AR a 10,6 μm y 633 nm (HeNe)

AR a 10,6 μm y 650 nm (diodo)

Combinador de haz a 10,6 μm y 633-650 nm

Divisor de haz (50 %) a 10,6 μm

Reflector parcial a 10,6 μm

AR 8 μm a 128 μm > 99 %T

AR 3 μm a 14 μm > 95 % T

RA 2,94 μm >99,7 % T

AR 2,5 μm a 5 μm > 99 % T

Recubrimientos de Co2 sobre Si

 

Recubrimientos de CO2 sobre Silicio

00 Espejo de cambio de fase a 10,6 μm

Espejo de cambio de fase 900 a 10,6 μm

Plata mejorada a 10,6 μm y VIS

Recubrimientos infrarrojos

Recubrimientos infrarrojos en germanio

Recubrimientos infrarrojos sobre seleniuro de zinc

Recubrimientos infrarrojos sobre sulfuro de zinc multiespectral

Recubrimientos infrarrojos sobre arseniuro de galio

Recubrimientos infrarrojos sobre silicio

Revestimientos reflectantes en varios metales y vidrio

Recubrimientos de película delgada

Recubrimientos de CO2 sobre ZnSe
RA a 10,6 μm
AR a 10,6 μm y 633 nm (HeNe)
AR a 10,6 μm y 650 nm (diodo)
Combinador de haz a 10,6 μm y 633-650 nm
Divisor de haz (50 %) a 10,6 μm
Reflector parcial a 10,6 μm

Recubrimientos de CO2 sobre Silicio
00 Espejo de cambio de fase a 10,6 μm
Espejo de cambio de fase 900 a 10,6 μm
Plata mejorada a 10,6 μm y VIS

Recubrimientos infrarrojos
Recubrimientos infrarrojos en germanio
Recubrimientos infrarrojos sobre seleniuro de zinc
Recubrimientos infrarrojos sobre sulfuro de zinc multiespectral
Recubrimientos infrarrojos sobre arseniuro de galio
Recubrimientos infrarrojos sobre silicio
Recubrimientos reflectantes en varios metales y vidrio.

APC: definiciones de códigos de recubrimiento, capacidades

AR - Antirreflectante
AR,BBAR - Banda ancha AR
AR,DBTR - Reflector total de doble banda

AR,TR - Reflector total
B/S - Amplio Espectro
B/S, DICH - dicroico de amplio espectro
BBAG BANDA ANCHA ANTI G
BBAR - Antirreflectante de banda ancha
BBAR,AR - Banda ancha antirreflectante / antirreflectante
BBAR, DBAR - Antirreflejos de banda ancha / Antirreflejos de doble banda
BBB/S
BBPR - Reflector parcial de banda ancha
BBTR - Reflector total de banda ancha
BBTR,BBAR - Reflector total de banda ancha / Antirreflectante de banda ancha
BBTR,BBAR,AR
DBAR - Doble banda antirreflectante
DBAR,TR, DBBAR, DBBF, DBBTR, DBTR, filtro
infrarrojos
Polarizador, PR, QBAR, RPR45, RPR90, TBAR, TBBAR,
TBPR, TBTR, TR, TR, AR, TR, BBAR, TR, DBAR, TR/IR